5th-grade student’s exam question has left adults stumped - ITT: Kiwis MATI because they can't Math

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One sibling has been left scratching their head at their younger brother’s Year 5 math exam.

The question, shared to Reddit, asks students to figure out how many pages are in a book.

“Klein read 30 pages of a book on Monday and one eighth of the book on Tuesday,” the question read.

“He completed the remaining quarter of the book on Wednesday. How many pages are there in the book?”

Some social media users were immediately stumped by the question.
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One person commented: “And now we can all see why “Are You Smarter Than a 5th Grader?” worked as a game show.”

“Today I learned I would fail fifth grade math,” another said on the thread.

One passionate person said: “I always think to my self; ‘Ugh. People should really be tested with basic skills before they’re allowed to go out into society.”

“And then I see this and realize I shouldn’t go out into society LOL!”

Not everyone agreed the question difficult.

“Not to be rude, but what is interesting about this,” one said.

“It looks just like any other math problem that I’ve done in 5th grade.”

Someone with a PhD in engineering, with a focus on applied mathematics, said it wasn’t difficult to work out but it came with the assumption that Klein started the book on Monday.

Once you have that, you divide 30 pages by five to see how much one eighth is worth, with the answer being six.

Math lovers then just do the simple multiplication of eight times six, with the answer being 48, and the equation is solved.

Really hate how math illiterate our society is. This problem is a basic equation

30+x/8+×/4=x

where x is the #of pages read, and the 3 counts they give you have to add up to x.

we multiply by 8 to make our lives easier

240+x+2x=8x

then we bring the xs to one side
240 = 8x-x-2x
add the xs
240= 5x
then divide by 5
48=x

I hate people who suck at math
 
I did it the long way because I can't remember how to do this stuff.

Monday's read must be equivalent to 5/8, which is 0.625. Therefore 100 divided by 62.5 = 1.6. Times that by 30 and you get 48.

Also, OP's explanation looks like Hasan Piker wrote it.
I came to the same conclusion with a similar method.

I got 5/8 = 30 pages
Divide 30 by 5 to get 6 pages aka 1/8th the book
Multiply 6 by 8 to get 8/8 (the entire book) which is 48.

I don't consider myself great at math so it's concerning so many people are having trouble with this.
I agree that this is the best way to think about the problem. 30 pages and 3/8ths of the book implies that 30 pages are 5/8ths of the book.

If 30 pages are 5/8ths of the book, it's easy to figure out that it's 48 pages in total: 30 pages on Monday, 6 pages on Tuesday, and 12 pages on Wednesday.
 
but essentially everyone with a >100 IQ should be able to get there eventually.
It would be interesting to see the rest of the exam. If this is considered reasonable but maybe a little high end for 5th graders, the keyword "eventually" combined with the time crunch of the exam is important context.

It's very possible that this problem was meant to be at the edge of what the students could handle in order to identify the especially intelligent students. Depending on the teacher's grading system, it could even be a source of extra credit points.
 
Wait a minute, I think I'm overcomplicating it.

I converted 30 to an improper fraction so it could have a denominator of 8. Then, I converted (x/8) and (x/4) into (2x/8) and made it equal to x. Now, I'm stuck.

Now I need to relearn how to add fractions and solve for x.
 
I did it the long way because I can't remember how to do this stuff.

Monday's read must be equivalent to 5/8, which is 0.625. Therefore 100 divided by 62.5 = 1.6. Times that by 30 and you get 48.

Also, OP's explanation looks like Hasan Piker wrote it.
I can't tell if this is fucking retarded or actually a smart way to solve this. I guess it doesn't really matter as long as you get the right answer.
 
The math solution would be better explained if you wrote it out better.

Wouldn't it help better if we KNEW how many pages the book had?

This might be a case where each generation is taught math a bit differently, so it's easy to parse if you're familiar with the wording, and with how your teacher expected the work to look.

Each day's reading added up together = x pages in the book

30 + 1/8x + 1/4x = x
30 + 1/8x + 2/8x = x
30 + 3/8x = x
30 = x - 3/8x
30 = ( 1-3/8 )x
30 = 5/8x
30 * 8/5 = x
48 = x

I was taught to automatically recognize that 30 must be 5/8x from step 3 , so you can skip the next two steps.
 
I came to the same conclusion with a similar method.

I got 5/8 = 30 pages
Divide 30 by 5 to get 6 pages aka 1/8th the book
Multiply 6 by 8 to get 8/8 (the entire book) which is 48.

I don't consider myself great at math so it's concerning so many people are having trouble with this.

I'm not sure how I missed this logical step. I feel like I was doing boomer problem solving. Sort of like when your dad manages to fix something without a hint of professional know-how. Like when hot means cold and cold means hot but who cares, we can have a shower again.
 
I did it the long way because I can't remember how to do this stuff.

Monday's read must be equivalent to 5/8, which is 0.625. Therefore 100 divided by 62.5 = 1.6. Times that by 30 and you get 48.

Also, OP's explanation looks like Hasan Piker wrote it.
I can't tell if this is fucking retarded or actually a smart way to solve this. I guess it doesn't really matter as long as you get the right answer.
It's smart but it's more of a science way to do it than a math way to do it.

I say it's more sciencey (specifically, chemistry-like) because it's more calculator friendly and it resembles unit conversions.
 
It's smart but it's more of a science way to do it than a math way to do it.

I say it's more sciencey because it's more calculator friendly and it resembles unit conversions.

I just added an unnecessary step by converting the fractions to decimals. Not really smart. I just couldn't remember how to deal with fractions.
 
Wait a minute, I could move the fraction with x to the other side.

Now I have 30 = (8x/8) - (3x/8), which comes up with 30 = (5x/8)
 
I never liked advanced math. After a certain point, it just became a headache of knowing all the formulas and what to do when there was a fucking minus for some reason or the properties of whatever-the-fuck
but i got it from this
3/8 + 30 = x
3 + 240 = 8x
240 = 5x
48 = x
and from reading the rest of the thread
 
Okay, NOW I've figured it out.

The result was 48 after solving my algebraic fractions.

On Tuesday Klein read 1/8 and on Wednesday he read 1/4, which we will change to 2/8 so that we can properly add it to the 1/8 he already read. This leaves us with 3/8 read on Monday and Tuesday, meaning the 30 pages read Monday accounted for 5/8 of the book. Simply divide by 5 and we can find that 1/8 of the book is 6 pages, meaning 8/8 of the book is 48 pages. Simple.

This might be a case where each generation is taught math a bit differently, so it's easy to parse if you're familiar with the wording, and with how your teacher expected the work to look.

Each day's reading added up together = x pages in the book

30 + 1/8x + 1/4x = x
30 + 1/8x + 2/8x = x
30 + 3/8x = x
30 = x - 3/8x
30 = ( 1-3/8 )x
30 = 5/8x
30 * 8/5 = x
48 = x

I was taught to automatically recognize that 30 must be 5/8x from step 3 , so you can skip the next two steps.
Thank you.

joancrawford_crying.gif
 
I figured this shit out while taking a shit. The answer is 48. Western civilization is truly doomed if the average adult cannot figure out simple word problems.
The scary part is, it's not math as much as it is reading comprehension. I mean sure there the whole fraction and solution thing going on; but the key point of any word problem is understanding what's being asked of you. When you look at test scores and see the low marks and how math and science is always lower than English, it's because they need a certain level of English to get by in life; trying something abstract when they already have a shit understanding eventually becomes impossible.
 
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